Results 21 to 30 of about 297,567 (266)

Corner reflector tag with RCS frequency coding by dielectric resonators

IET Microwaves, Antennas & Propagation, 2021
For a novel indoor‐localization system, chipless tags with high retro‐directive radar cross‐section (RCS) under wide‐angle incidence are required as fixed landmarks.
Ali Alhaj Abbas, Mohammed El‐Absi, Ashraf Abuelhaija, Klaus Solbach, Thomas Kaiser   +4 more
doaj   +1 more source

2–D Lossless FIR Filter Design Using Synthesis of the Paraunitary Transfer Function Matrix

International Journal of Applied Mathematics and Computer Science, 2023
A synthesis method for designing two-dimensional lossless finite impulse response (FIR) filters for various digital signal processing tasks is proposed.
Wawryn Krzysztof, Poczekajło Paweł
doaj   +1 more source

Experimental Investigation of Terahertz Scattering: A Study of Non-Gaussianity and Lateral Roughness Influence

IEEE Access, 2020
The scattering phenomenon caused by rough surfaces has a dominant role in shaping the reflected field at terahertz (THz) frequencies, both in specular and non-specular directions. Most surfaces in nature are randomly rough, and the surface height obeys a
Mai Alissa, Benedikt Friederich, Fawad Sheikh, Andreas Czylwik, Thomas Kaiser   +4 more
doaj   +1 more source

Harmonic FMCW Radar System: Passive Tag Detection and Precise Ranging Estimation

Sensors
This paper details the design and implementation of a harmonic frequency-modulated continuous-wave (FMCW) radar system, specialized in detecting harmonic tags and achieving precise range estimation.
Ahmed El-Awamry, Feng Zheng, Thomas Kaiser, Maher Khaliel   +3 more
doaj   +1 more source

Evidence‐Informed Multidisciplinary Consensus Guidance for the Psychosocial Care of Adolescents With High‐Risk Cancer: Recommendations From the Italian Association of Pediatric Hematology and Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom, Dorella Scarponi, Giulia Zucchetti, Teresa Perillo, Maria Montanaro, Elisa Marconi, Chiara Rutigliano, Paolo Colavero, Paola Quarello, Marina Bertolotti, Monica Cellini, Carlo Clerici, Maurizio Mascarin, Francesca Bomben, Andrea Ferrari, the expert workgroup   +15 more
wiley   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

Reliability Analysis of Centralized Radio Access Networks in Non-Line-of-Sight and Line-of-Sight Scenarios

IEEE Access, 2019
The fifth generation (5G) wireless network technology is set to be standardized by 2020, where the main goals are to improve capacity, reliability, and energy efficiency while reducing latency and massively increasing connection density.
Daniel Peethala, Thomas Kaiser, A. J. Han Vinck   +2 more
doaj   +1 more source

Real‐time capable multiple‐input–multiple‐output SONAR systems—An algorithmic approach

IET Radar, Sonar & Navigation, 2021
In recent years, significant effort has been allocated to research on multiple‐input–multiple‐output (MIMO) sound navigation and ranging (SONAR) and RADAR systems.
Thorben Kaak, Jan Abshagen, Gerhard Schmidt   +2 more
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source

Hierarchical Multi-Grid OMP for Ultra-Resolution Channel Estimation in THz UM-MIMO Systems

IEEE Access
In this paper, we propose an ultra-resolution channel estimation scheme for ultra massive multiple input multiple output (UM-MIMO) systems operating in the Terahertz (THz) band.
Akram Najjar, Mohammed El-Absi, Thomas Kaiser   +2 more
doaj   +1 more source